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Blue Horsehead / IC 4592 / LDN 1721

Classification: Reflection Nebula / Dark Nebula
Constellation: Scorpius (SCO)
Object Location: Apx. Ra 16h 22m Dec -19° 28’ (current) (Centered)
Size & Distance: Apx, R-40 ly Apx 400 light years

Date & Location: 05-08 / 14-15 2021 Little Blair Valley, CA
Exposure: LRGB 2 Pain Mosaic, 300-140-130-150, L-30x10, R-14x10, G- 13x10, B- 15x10, 12hr (bin1x1)
Optics: Telescope Engineering Company APO110FL w/ TEC FF @ f/5.74, 631mm using the Optec FocusLynx.
Mount: Astro-Physics 1200 GTOCP4 / Mach 1 GTOCP4 / ATS 10x36 pier.
Camera: FLI-PL16803 @-25c / FLI CFW5-7 Guided by SBIG ST-I / w OAG.
Filters: Astrodon G2 LRGB
Software: MaxImDL 6.11, Photoshop CC, CCDStack, Topaz Studio.

Notes: Sky conditions: Below average seeing, wind, 5-10 Avg Temp 65°
Image Field of view is 362.2 (6.03°) x 197 (3.29°) arcmin. Image Scale 2.94 arcsec/pix

This 2 pane Mosaic was imaged over three nights from May 8th and May 14th-15th

IC 4592 is a reflection nebula in Scorpius and is part of the Rho Ophiuchi complex. There is a second reflection nebula IC 4601 that is surrounding the two stars, upper center.